AN INVESTIGATION OF BROADSCALE VERTICAL MOTIONS AND PRECIPITATION IN AN EASTERN NORTH AMERICAN STORM

The precipitation associated with the intense storm of February 25–27, 1961, which affected eastern North America, is investigated. Vertical motion patterns are computed for successive days of the storm using a method suggested by Bushby, and based on the Sutcliffe development theory. These patterns are used, together with different, rate of precipitation formulas, to calculate, precipitation amounts. Comparisons with actual amounts are made. A method of quantitative precipitation forecasting is suggested.